Internet Explorer 7.0 = Mozilla Firefox?

According to a screenshot making its rounds on some forums, Microsoft's answer to Mozilla's Firefox, Internet Explorer 7, might be in its alpha stage. The about IE shows a build of 0719, and another screenshot shows what appears to be tabbed browsing. No mention of a leak yet, but if these screenshots are confirmed to be real, then a leak is definitely inevitable. Read more for screenshots.See screenshot and comments

People are saying that this is perhaps a fake. A Firefox with some photoshop.